Getting Started Tutorials - MechDesigner > Tutorial 14: Gear-Pairs / Rack-Pinions > A: Fixed Gear Centers

Reverted Gear-Train

Schematic of Reverted Gear-Train.

A Reverted Gear Train has:

•two Gear-Pairs

•two shafts , that are co-axial

It is a Compound Gear with two Gears-Pairs. It has special condition that each number-of-teeth on each Gear-Pair are equal, when the module is the same.

The image to the left is a schematic of a Reverted Gear-Train.

Reverted Gear Train – Gear-Pair 1

GST-RevertedGearsPrep-A

Add a simple Gear-Pair

Number-of-teeth:

Reverted Gear Train – Gear-Pair 2

GST-RevertedGearsPrep-B

Prepare

1.Edit the Base-Part

2.Geometry toolbar: Add Line, Drag from the end-Point of the Line-of-Centers of Gear-Pair 1

3.Merge its start-Point with end-Point of the Line in Base-Part

4.Add Dimension to the new Line. Exit Part-Editor.

5.Add a new Part.

6.Add Pin-Joint - click end-Point of new Line and origin new Part.

Add the second Gear-Pair.

1.Add Gear-Pair: Line 1: Click the CAD-Line in the of the Geared-Rocker

2.Add Gear-Pair: Line 2: Click the CAD-Line in the new Part

3.Add Gear-Pair: Line 3 : Click the new Line and then the dimension of the Line.

4.Edit the Base-Part:

5.Add Horizontal constraint to the new Line.

6.Exit Part-Editor.

GST-RevertedGearsPrep-C

Edit the Number of Teeth on Gear-Pair 2

Total Gear Ratio